Outlook Disable Modern Authentication, . modern authentication in Of

Outlook Disable Modern Authentication, . modern authentication in Office 365 and how to enable modern authentication to improve Microsoft 365 security. See when it happened and learn more about modern auth. 6495)—on January 24, 2026 to address a set of post‑Patch‑Tuesday regressions and to Disable the Modern Authentication for Office 365 Desktop Apps. Note: For tenants created before August 1, 2017, modern authentication is turned off by default for Run the following command to enable modern authentication connections to Exchange Online by Outlook 2013 or later clients: Optional: Run the following command to prevent modern authentication Even if you're not using Modern Auth, Outlook may still attempt it. For more information, see Enable or disable modern authentication for Outlook in Exchange Online. com disabling basic authentication and requiring modern authentication. As a workaround adding this registry key to disable modern auth prevents the password window from popping up and prevents outlook from saying it “Needs the password. In this video we will get to know how to turn off basic authentication in outlook. In early January 2023, we will permanently turn off Basic auth for multiple protocols for many Exchange Online tenants.

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